you can imagine this as a venn diagram. the "or" event would consist of everything in both sides and the middle of the venn diagram because you can choose form either event x <u>or</u> event y.
the "and" event would consist of everything in the middle of the venn diagram because you choice must be a part of both event x <u>and</u> event y.
the complement of an event is just everything that is not included in the event. for example, in a coin flip, the complement of heads is tails. in a dice roll, the complement of {1,2} is {3,4,5,6}
so if you come across these just think "either or" or "both and." and remember that the complement is everything excluding what is listed.
i apologize if this does not help, im not that great at explaining things
Answer:
Divide a percent by 100 and remove the percent sign to change it from a percent to a decimal.
Step-by-step explanation:
1. Example: 9 % is 0.09
2. Example: 8% is 0.08
3 .Example: 10% will change to 10/100 =decimal 0.10
That how it work just follow the example
25/8 when using the butterfly method
Answer:
C. $2.54/gallon
Step-by-step explanation:
To find the unit price, we take the dollar amount and divide by the number of gallons
$46.74/18.4
2.540217391
The unit price per gallon of gasoline is
$2.54/ gallon
Answer: 34%
Step-by-step explanation:
Creating a table with the information will help us.
<6h of sleep - 75% reported tired | 25% reported ok
>6h of sleep - 70% reported ok | 30% reported tired
80% of all interns received <6h of sleep
Let's imagine that we have 100 interns at this hospital
<6h | >6h Total
Tired 75% of 80 30% of 20
ok 25% of 80 70% of 20
Total 80 | 20 100
<6h | >6h Total
Tired | 60 | 6 66
ok | 20 | 14 34
Total | 80 | 20 100
what percent of the interns report no feelings of tiredness during their shifts?
34/100 = 34%
